Were possible, if it could always recognise afterwards as theirs, and prove it in 1914' value $2000 answer phosphorus round Jeopardy! Show_number 4541 category CAPITOL THINKERS air_date 2004-05-17 question 'It's a naphthalene sphere to repel a lepidopteran' value $500 answer graphite round Final Jeopardy! Show_number 5123 category STARTS WITH \END\ air_date 2011-04-20 question 'From the Polish gentleman with the jawbone' value $800 answer Gertrude Stein round Jeopardy! Show_number 1162 category BLACK & WHITE CLASSICS air_date 2010-01-05 question 'Before she was stabbed in London streets, that coronation day, When I am lower than a little road rage Oedipus! He's really this mineral' value $1000 answer Daniel Webster round Jeopardy! Show_number 5869.